Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Mais filtros










Intervalo de ano de publicação
1.
Sensors (Basel) ; 23(23)2023 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-38067740

RESUMO

The Internet of Things (IoT) has positioned itself globally as a dominant force in the technology sector. IoT, a technology based on interconnected devices, has found applications in various research areas, including healthcare. Embedded devices and wearable technologies powered by IoT have been shown to be effective in patient monitoring and management systems, with a particular focus on pregnant women. This study provides a comprehensive systematic review of the literature on IoT architectures, systems, models and devices used to monitor and manage complications during pregnancy, postpartum and neonatal care. The study identifies emerging research trends and highlights existing research challenges and gaps, offering insights to improve the well-being of pregnant women at a critical moment in their lives. The literature review and discussions presented here serve as valuable resources for stakeholders in this field and pave the way for new and effective paradigms. Additionally, we outline a future research scope discussion for the benefit of researchers and healthcare professionals.


Assuntos
Internet das Coisas , Dispositivos Eletrônicos Vestíveis , Gravidez , Recém-Nascido , Humanos , Feminino , Atenção à Saúde , Monitorização Fisiológica , Previsões , Internet
2.
Int J Biol Macromol ; 109: 1029-1038, 2018 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-29154879

RESUMO

Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common type of dementia in elderly ( >65years of age). Excessive extra cellular deposits of amyloid beta (Aß) are a pathological feature of AD. Aß can cause cell death through oxidative damage; recent studies have implicated opening of mPTP as a detrimental event in AD-related mitochondrial dysfunctions. Over the past few years, natural compounds with antioxidant properties have shown promise for intervention in AD.


Assuntos
Peptídeos beta-Amiloides/farmacologia , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Monoterpenos/farmacologia , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Citocromos c/metabolismo , Fragmentação do DNA/efeitos dos fármacos , Sinergismo Farmacológico , Humanos , Ativação do Canal Iônico/efeitos dos fármacos , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Proteínas de Transporte da Membrana Mitocondrial/metabolismo , Poro de Transição de Permeabilidade Mitocondrial , Espécies Reativas de Oxigênio/metabolismo
3.
Biol Res ; 47: 45, 2014 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-25299748

RESUMO

BACKGROUND: The study was conducted to evaluate the in vitro antimicrobial activity, cytotoxic, and membrane stabilization activities, and in vivo antiemetic and antipyretic potentials of ethanolic extract, n-hexane and ethyl acetate soluble fractions of Spilanthes paniculata leaves for the first time widely used in the traditional treatments in Bangladesh. RESULTS: In antipyretic activity assay, a significant reduction (P < 0.05) was observed in the temperature in the mice tested. At dose 400 mg/kg-body weight, the n-hexane soluble fraction showed the effect (36.7 ± 0.63°C ) as like as the standard (dose 150 mg/kg-body weight) after 5 h of administration. Extracts showed significant (P < 0.001) potential when tested for the antiemetic activity compared to the standard, metoclopramide. At dose 50 mg/kg-body weight, the standard showed 67.23% inhibition, whereas n-hexane and ethyl acetate soluble fractions showed 37.53% and 24.93% inhibition of emesis respectively at dose 400 mg/kg-body weight. In antimicrobial activity assay, the n-hexane soluble fraction (400 µg/disc) showed salient activity against the tested organisms. It exerts highest activity against Salmonella typhi (16.9 mm zone of inhibition); besides, crude, and ethyl acetate extracts showed resistance to Bacillus cereus and Bacillus subtilis, and Vibrio cholera respectively. All the extracts were tested for lysis of the erythrocytes. At the concentration of 1mg/ml, ethanol extract, and n-hexane and ethyl acetate soluble fractions significantly inhibited hypotonic solution induced lysis of the human red blood cell (HRBC) (27.406 ± 3.57, 46.034 ± 3.251, and 30.72 ± 5.679% respectively); where standard drug acetylsalicylic acid (concentration 0.1 mg/ml) showed 77.276 ± 0.321% inhibition. In case of heat induced HRBC hemolysis, the plant extracts also showed significant activity (34.21 ± 4.72, 21.81 ± 3.08, and 27.62 ± 8.79% inhibition respectively). In the brine shrimp lethality bioassay, the n-hexane fraction showed potent (LC50 value 48.978 µg/ml) activity, whereas ethyl acetate fraction showed mild (LC50 value 216.77 µg/ml) cytotoxic activity. CONCLUSIONS: Our results showed that the n-hexane extract has better effects than the other in all trials. In the context, it can be said that the leaves of S. paniculata possess remarkable pharmacological effects, and justify its folkloric use as antimicrobial, antipyretic, anti-inflammatory, and antiemetic agent. Therefore, further research may be suggested to find possible mode of action of the plant part.


Assuntos
Antibacterianos/farmacologia , Antieméticos/farmacologia , Antipiréticos/farmacologia , Asteraceae/química , Citotoxinas/farmacologia , Membrana Eritrocítica/efeitos dos fármacos , Acetatos , Animais , Artemia/efeitos dos fármacos , Asteraceae/classificação , Bacillus cereus/efeitos dos fármacos , Bacillus subtilis/efeitos dos fármacos , Bioensaio/mortalidade , Galinhas , Testes de Sensibilidade a Antimicrobianos por Disco-Difusão , Membrana Eritrocítica/fisiologia , Escherichia coli/efeitos dos fármacos , Etanol , Hexanos , Temperatura Alta , Humanos , Medicina Tradicional , Camundongos , Testes de Sensibilidade Microbiana , Extratos Vegetais/farmacologia , Folhas de Planta/química , Salmonella typhi/efeitos dos fármacos , Staphylococcus aureus/efeitos dos fármacos , Vibrio cholerae/efeitos dos fármacos
4.
Biol. Res ; 47: 1-9, 2014. graf, tab
Artigo em Inglês | LILACS | ID: biblio-950741

RESUMO

BACKGROUND: The study was conducted to evaluate the in vitro antimicrobial activity, cytotoxic, and membrane stabilization activities, and in vivo antiemetic and antipyretic potentials of ethanolic extract, n-hexane and ethyl acetate soluble fractions of Spilanthes paniculata leaves for the first time widely used in the traditional treatments in Bangladesh. RESULTS: In antipyretic activity assay, a significant reduction (P < 0.05) was observed in the temperature in the mice tested. At dose 400 mg/kg-body weight, the n-hexane soluble fraction showed the effect (36.7 ± 0.63°C ) as like as the standard (dose 150 mg/kg-body weight) after 5 h of administration. Extracts showed significant (P < 0.001) potential when tested for the antiemetic activity compared to the standard, metoclopramide. At dose 50 mg/kg-body weight, the standard showed 67.23% inhibition, whereas n-hexane and ethyl acetate soluble fractions showed 37.53% and 24.93% inhibition of emesis respectively at dose 400 mg/kg-body weight. In antimicrobial activity assay, the n-hexane soluble fraction (400 µg/disc) showed salient activity against the tested organisms. It exerts highest activity against Salmonella typhi (16.9 mm zone of inhibition); besides, crude, and ethyl acetate extracts showed resistance to Bacillus cereus and Bacillus subtilis, and Vibrio cholera respectively. All the extracts were tested for lysis of the erythrocytes. At the concentration of 1mg/ml, ethanol extract, and n-hexane and ethyl acetate soluble fractions significantly inhibited hypotonic solution induced lysis of the human red blood cell (HRBC) (27.406 ± 3.57, 46.034 ± 3.251, and 30.72 ± 5.679% respectively); where standard drug acetylsalicylic acid (concentration 0.1 mg/ml) showed 77.276 ± 0.321% inhibition. In case of heat induced HRBC hemolysis, the plant extracts also showed significant activity (34.21 ± 4.72, 21.81 ± 3.08, and 27.62 ± 8.79% inhibition respectively). In the brine shrimp lethality bioassay, the n-hexane fraction showed potent (LC50 value 48.978 µg/ml) activity, whereas ethyl acetate fraction showed mild (LC50 value 216.77 µg/ml) cytotoxic activity. CONCLUSIONS: Our results showed that the n-hexane extract has better effects than the other in all trials. In the context, it can be said that the leaves of S. paniculata possess remarkable pharmacological effects, and justify its folkloric use as antimicrobial, antipyretic, anti-inflammatory, and antiemetic agent. Therefore, further research may be suggested to find possible mode of action of the plant part.


Assuntos
Humanos , Animais , Camundongos , Asteraceae/química , Citotoxinas/farmacologia , Membrana Eritrocítica/efeitos dos fármacos , Antipiréticos/farmacologia , Antibacterianos/farmacologia , Antieméticos/farmacologia , Artemia/efeitos dos fármacos , Salmonella typhi/efeitos dos fármacos , Staphylococcus aureus/efeitos dos fármacos , Bacillus cereus/efeitos dos fármacos , Bacillus subtilis/efeitos dos fármacos , Vibrio cholerae/efeitos dos fármacos , Bioensaio/mortalidade , Extratos Vegetais/farmacologia , Testes de Sensibilidade Microbiana , Galinhas , Folhas de Planta/química , Asteraceae/classificação , Etanol , Membrana Eritrocítica/fisiologia , Escherichia coli/efeitos dos fármacos , Testes de Sensibilidade a Antimicrobianos por Disco-Difusão , Temperatura Alta , Hexanos , Medicina Tradicional , Acetatos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...